Look, if you need a refresher of what’s happening, the prison records have been wiped clean after Little Sister broke in to try and kill Helper and Viola, who were arrested during a failed attempt to hunt down the Folklorist as revenge for killing the Cardboard Box and initiating the New World conflicts where factions begin to fight over each other behind the scenes, thus necessitating the need to stealthily search for the whereabouts of the other Overlords to neutralize them and eventually restore order.

Simple.